First client meeting
During a discovery call, compute TDEE and estimate 1RM live to show your seriousness and frame real goals.
Free tools · no signupFree calculators
Free calculators
for fitness coaches.
8 tools built for consulting and programming: 1RM, TDEE, body fat, conversions, cardio expenditure… All calculations run in your browser.
100% free · no card · data never stored
1RM CalculatorEpley formula
Estimated 1RM140 kg
95%133 kg
90%126 kg
85%119 kg
80%112 kg
The 8 tools
Pick the tool you need
Strength
1RM Calculator
Estimate your clients' 1RM from a sub-max load. 4 formulas: Epley, Brzycki, Lombardi, Lander. Percentages table included.
Squat · Bench · DeadliftUse the toolCardioLéger Test Simulator
Compute MAS and VO₂ max from the level reached on the Léger test (progressive 20 m run).
MAS · VO₂ max · Audio includedUse the toolCardioCooper Test Simulator
Estimate VO₂ max from the distance run in 12 minutes. Easy field cardio benchmark.
12 minutes · VO₂ maxUse the toolNutritionkcal & macros calculator (TDEE)
Basal metabolic rate + total energy expenditure, macros split by goal (cut, bulk, recomp). Mifflin-St Jeor formula.
TDEE · Macros · Cutting / BulkingComing soonCompositionBMI calculator
Body mass index per WHO standards. With caveats for athletes (muscle mass skews BMI).
Coming soonCompositionBody fat % (Navy)
Body fat estimate via Navy Method (neck, waist, hip measurements). More accurate than BMI for athletes.
Coming soonStrengthRPE / RIR → Load
Convert perceived intensity (RPE 7, RIR 2…) into precise load. Based on Mike Tuchscherer's RPE table.
Coming soonConversionskg ↔ lbs · cm ↔ inches
Instant weight and measurement conversions. Handy for clients switching between metric and imperial.
Coming soonNutritionHydration needs
Recommended daily water intake based on weight, activity level, climate. With workout adjustment.
Coming soonWhy our tools
Serious, simple, respectful
Scientifically validated formulas
Mifflin-St Jeor, Epley, Brzycki, Navy Method… our calculations rely on standards used by federations and research.
No signup, no credit card
All tools are 100% free, no signup. No data is sent to our servers, calculations run in your browser.
Built for consulting
Clear interface, readable results to show a client. Bookmark the hub and use it in a discovery call.
Three use cases
When to use these tools
Content creation
Writing about bulking or cutting? Pull precise numbers with the macros calculator. More credible than approximations.
Program adjustment
Your client progressed on squats? Recalculate their 1RM with the new load and adjust all percentages of their cycle in 30 seconds.
Resources for coaches
Go further
See the full software
Programs, client tracking, white-label mobile app, everything calculators don't do.
DiscoverOur blog for coaches
Business tips, training, copywriting, to grow your coaching business.
DiscoverA question? Write to us
We reply in 5 min on average via WhatsApp or email. No chatbot, a real human.
DiscoverBook a demo
15 to 30 min with Mathias, the creator of Fit'Distance, to see the app in your context.
DiscoverFAQ
Frequently asked questions
Are the calculators really free?
Yes, 100% free, no signup, no card. Use them as many times as you want, and bookmark them to use during client meetings.
Are my client data stored?
No. All calculations run in your browser. No data (weight, load, measurements…) is sent to our servers or stored anywhere.
Where do the formulas come from?
All formulas come from scientific literature or federation standards (Mifflin-St Jeor for TDEE, Epley/Brzycki for 1RM, Navy Method for body fat, Compendium 2011 METs for cardio).
Can I integrate these calculators in my own tools?
Not yet, no public API. If you use Fit Distance, these calculations are already built into the platform and linked to each client profile.
I m an independent coach, is Fit Distance worth it?
If you have more than 5 clients, yes, you ll save several hours per week on programming, tracking and communication. With just a few clients, the lifetime free plan is enough.
Will you add more tools?
Yes. VO₂ max, heart rate zones, progression plan, and more are in the pipeline. If you have a specific idea, write to us, we ship them regularly.
Ready for what's next?
Ready to switch to the really complete software?
Calculators are useful. But to manage your clients daily, programs, tracking, mobile app, we built Fit'Distance.
No card · No commitment · Free for life for your 1st client